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• Adults should help children wear and operate thr device.

• Please keep the arm straight for at least 5-8 minutes to obtain exact  

temperature.

• After measurement, replace the sensor in the packaging to avoid battery 

consumption, as the device is always on.

Note:

 Different measurement formats and methods can lead to different 

temperature values.

Maintenance and cleaning                                                            

1 Clean the surface of the device before and after use with 75% concentrate 

medical alcohol;

2 Stop using the device when the battery indicates low battery, otherwise  

the device will not operate correctly;

3 The product has a useful life of 3 years. Disposal of the device and its battery 

must be carried out at the end of its useful life in accordance with national 

laws;

4 The probe must be cleaned and disinfected, but never sterilised. Do not 

sterilise the device in an autoclave or otherwise

• If the probe shows signs of damage or deterioration, stop using the device 

immediately.

• The use of detergents or disinfectants other than alcohol may damage  

the device and reduce its usable life, or cause a safety risk.

• The electrical screen and the list of components is only supplied to  

assistance centres or qualified personnel certified by the manufacturer.

• Please refer to the product label for the manufacturing date.

Product specifications                                                                    

Possibili Problemi e Soluzioni 

Guandong Biolight Meditech Co., Ltd.

No. 2 Innovation First Road, Technical Innovation Coast

Hi-Tech Zone, Zhuhai, China

Made in China

25548 / WT1

M-25548-GB-Rev

.0.09.17

Product specifications                                                   

Definition of symbols

Manufacturer EMS Guide and Declaration                 

Guarantee Certificate

If you require technical advice or encounter malfunctions with your device 

(excluding human error or defects cause by accidents) during the guarantee 

period, please contact the assistance centre.

NOTE:

 the same registration and password cannot be shared between  

multiple devices; we recommend creating a new account for each mobile 

device.    

Production Model

WT1

Size

51mm×31.8mm×8.5mm

Weight

9.6g

Measurement specifications

Measurement range

25.00°C~45.00°C (77.00°F~113.00°F)

Measurement accuracy

±0.05°C (35.00°C~38.50°C) \
±0.09°F (95.00°F~101.30°F)
±0.1°C (25.00°C~34.99°C and 38.51°C~45.00°C) \
±0.18°F (77.00°F~94.99°F) and (101.31°F~113.00°F)

Measurement units for temperature “°C” or “°F”
Update frequency

Every 3s

Illuminated Bluetooth indicator

Not connected: flashes twice continuously.
Connected: flashes once.

App software platform

iOS System

iPhone 4s+, iPad3+, iPad mini

Android System (4.3+) 

Mobile telephone, Tablet

Battery

Type

CR2032, 3V/225mAH button battery

Operating time

≥365 days (8 hours per day)

Environmental specifications

Temperature

In use: 5°C~+40°C;
Transportation and storage: -20°C~+55°C

Humidity

In use: 25%~95% (without condensation);
Transportation and storage: 25%~95% 
(without condensation)

Atmospheric pressure

In use: 700hPa~1060hPa;
Transportation and storage: 500hPa~1060hPa

Problem

Possible Cause

Solution

No sound warning

The sound system is off

Cannot set the sound system 
correctly

Unable to establish a 
connection between 
the device and the 
receiver

1. Bluetooth on the receiver 

is off

2. The Android receiver    

version is not 4.3 or 
greater

3. The Bluetooth version is 

not 4.0

4. Out of range
5. Incorrectly positioned

1. Switch Bluetooth on
2. Update the Android system to 

version 4.3 or greater

3. Use a receiver device with 

Bluetooth 4.0

4. Switch off the receiver
5. Change the receiver position

Cannot switch the 
device on

1. The battery may be low  

or power missing

2. The device itself may be 

damaged

1. Restart the device
2. Contact customer services

Cannot see data 
correctly regarding
temperature

1. Device battery is flat

1. Restart the device
2. Contact customer services

Number

Components

WT1

1

Adhesive tape

One

2

User manual

One

Product name

Model name

Product serial 
number

Guarantee Period

User Name

User address

Contacts

Telephone contact

Manufacturer Guide and Declaration - Electromagnetic Emissions

The device is designed for use in electromagnetic areas as specified below. 
The customer or user must ensure that the product is used in such areas.

Emissions test

Compliance

Guide - electromagnetic 

environment

RF Emissions 
CISPR 11

Group 1

The device uses RF energy only 
for its internal functions. Its RF 
emissions are therefore very low, 
and it is improbably that they 
may cause interference with other 
electronic devices nearby.

RF Emissions
CISPR 11

Class B

The device is suitable for use in all 
installations, including domestic 
installations and those connected 
directly to a low-voltage public 
power supplier that supplies 
buildings for domestic use.

Harmonised emissions
IEC 61000-3-2

Not applicable (Device
operates on batteries)

Current fluctuations / 
flicker emissions
IEC 61000-3-3

Not applicable (Device 
operates on batteries)

Shanghai International Holding Corp. GmbH (Europe)

Eiffestrasse 80, 20537, Hamburg, Germany

0123

IP27

Simbolo

Nota

Keep away from sunlight

Keep in a cool, dry place

 

Read instructions carefully

Products should not be disposed of with household waste

Part applied of CF type without defibrillation protection

IP27 

Casing protection class

Refer to this user manual

SN

Serial number

Product complies with European Directive no. 98/79/EC 

Manufacturer

Authorized representative in the European community

Product code

Lot number

All manuals and user guides at all-guides.com

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